the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. What type of blood pressure measurement error is most likely to occur if the nurse does not check for the presence of an auscultatory gap?

Correct answer: C

Rationale: If an auscultatory gap is undetected, a falsely low systolic reading may occur. This gap can lead to an underestimation of the systolic blood pressure, causing potential misinterpretation of the patient's condition. The diastolic blood pressure may not be heard due to the gap, but the critical issue in this scenario is the risk of underestimating systolic blood pressure, which can impact clinical decision-making. Choices B, C, and D are incorrect because the key concern in this context is the potential for a falsely low systolic blood pressure reading when an auscultatory gap is not assessed.

3. While assisting a client from bed to chair, the nurse observes that the client looks pale and is beginning to perspire heavily. The nurse would then do which of the following activities as a reassessment?

Correct answer: D

Rationale: In this scenario, the nurse has observed concerning signs in the client during the transfer process. The appropriate action for reassessment would be to observe the client's skin color and take another set of vital signs. This will provide essential data to evaluate the client's condition more accurately. Options A, B, and C are interventions that do not address the need for reassessment. Moving the client more quickly, documenting previous vital signs, or returning the client to bed do not directly address the need to reassess the client's current condition.

4. Patients have a right to ______________.

Correct answer: B

Rationale: Patients have a legal right to access all of their health-related information. This includes details about their health condition, treatment options, test results, and any other relevant data. Providing patients with all their health-related information empowers them to make informed decisions about their care, promotes transparency in the healthcare process, and respects their autonomy. Choices A, C, and D are incorrect because they restrict the information patients should receive based on assumptions or limitations, which goes against the principle of patient autonomy and their right to access their complete health-related information.

5. Which of the following items of subjective client data would be documented in the medical record by the nurse?

Correct answer: D

Rationale: The correct answer is 'Client feels nauseated.' Subjective data refers to the client's sensations, feelings, and perception of their health status. It can only be reported by the client as it is based on their personal experiences. The feeling of nausea is a subjective symptom that the client experiences and can provide insight into their health condition. Choices A and B represent objective data, as they describe observable or measurable findings that can be detected by the nurse. Choice C involves information reported by someone other than the client, making it indirect and not purely subjective.

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